Deep container for long tapped rooted persimmon tree

TREES & SHRUBS FOR ALL

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Taking Root

Fall is my favorite time to plant trees and shrubs — it’s the best time, in fact, for most of them. Here in cold hardiness Zone 5 of New York’s Hudson Valley, the specific date is October 17th. No, no, just kidding. Anytime around the middle of fall is good.

And that’s one reason I like fall planting. With plant growth ground to a halt and the soil generally in good condition for planting, fall planting is a relaxed affair. In spring, plants are raring to grow so want their roots nestled in their permanent home as soon as possible.

But enough about timing. Let’s see what form trees and shrubs, whether in fall or spring and whether purchased through the mail or locally, are available. You can buy trees and shrubs in one of three different ways.Tree at nursery

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Spreading wood chip mulch

ANTI-SOCIAL WEEDS

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Best Worst in my Gardens

Do your weeds socialize? Mine mostly do not. That’s at least true for summer’s worst weeds. Each has seemingly staked out its territory in various of my gardens or parts of gardens, and keeps there mostly to itself.

The all-time biggest offender has been Canadian thistle (Cirsium arvense). Its bristly stems and leaves have insinuated themselves all over the place to the west of our main vegetable garden, in among a hogepodge of berry plants. How clever of them, especially getting in there among the gooseberries, where it’s hard enough to pull them from amongst the clusters of berrty stems, and made moreso by gooseberry’s spines.

One control — not cure, though — for the thistle invasion is mulch. Because of thistle’s deep, energetic, errant roots, just any mulch will not do.Spreading wood chip mulch So I’ve resorted, hopefully just for this year, to laying down corrugated cardboard topped with arborist wood chips, a technique beloved to permaculturalists and historically loathed by me. Read more

Bed of lettuce and Chinese cabbage in fall

PLAN(T) AHEAD

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A Whole ‘Nuther Garden

It’s hard to imagine that the weather will eventually turn cool, then cold. But of course it will, I’ve been planning what vegetables to grow late in the season after cool temperatures have sapped the vitality from tomatoes, cucumbers, and peppers. You might also consider it, because growing fall vegetables is like having a whole other garden, but in the same space.

Cool weather brings out the best flavor from vegetables such as kale, broccoli, and carrots. And the harvest season is long; fall vegetables just sit pretty awaiting harvest at your leisure.Bed of lettuce and Chinese cabbage in fall I hew to three commitments I make every summer in planning for fall vegetables.

The first is to maintain soil fertility. Getting another growing season out of my garden means more fertility is needed, so fertilizer and/or liberal amounts of compost or other organic matter needs to be added to the soil. Fall’s predominantly leafy vegetables are heavy feeders.

My fertility system used to be Read more

Varieties of paste tomatoes, labelled

AND THE BEST PASTE TOMATO IS . . .

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Is a Tomato a Tomato

If a rose is a rose is a rose is a rose, then a tomato is a tomato is a tomato. Or surely a paste tomato is. After all, paste tomatoes are rarely eaten fresh; they are mostly just cooked.

Each summer in my garden, we grow and put up enough canned tomatoes to keep us in soup, stew, and sauce for at least a year. Canned tomatoesA couple of summers ago, I sorted through some of the paste tomato varieties available, planting, growing, and evaluating flavors of the reputed best. These were varieties highly touted by seed purveyors, some gardeners, and on the web.

I admit to entering this foray with prejudices. Read more

Clear dome maintains humidity in the propagator

FINDING MY ROOTS

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FINDING MY ROOTS

Totipotent Cells

Take a look at new shoots growing on a favorite shrub or vine and you’ll see that the bases of these shoots may be beginning to toughen up, becoming woody. Such shoots, snipped from the mother plant as so-called half-woody cuttings, can be rooted to make new plants. Two other types of stem cuttings are softwood cuttings, taken while shoots are still green and succulent, and hardwood cuttings, taken from thoroughly woody, often leafless, shoots.

You can make whole, new plants from any of these cuttings; I’ve done it for years. But be careful because rooting cuttings to make new plants can become addictive. And then you have to figure out what to do with all your new plants. (Hence, my annual plant sales.)Propagator for softwood cuttings

Cuttings are one of many ways to clone plants, that is, produce new plants that are genetically identical to the mother plant from which the stems were taken. Read more

Mexican "truffles"

SWEET CORN: OLD VARIETY, MODERN GROWING

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Genetics: Up, Up, Up with the Sugar

I plan on eating sweet corn almost daily from about the middle of July until early autumn. I know the arguments against growing sweet corn in a backyard garden: It’s cheap at the farmstand and space-hungry in the garden. What’s more, the most modern, “supersweet” varieties hold their sweetness for days.

The supersweet varieties are truly supersweet. But “supersweet” is too much of a catchall term. Old-fashioned corn, the Papoon corn developed around 1750 by the Haudenosaunee Confederacy and still available today, is noted for its creamy texture and 9 percent sugar due to its SU gene. Unfortunately, those sugars start changing into starch as soon as an ear is harvested.

Golden Bantam sweet corn

Golden Bantam sweet corn

In the latter half of the 20th century, “Sugary enhanced” sweet corn came on the scene. The SE gene incorporated into sweet corn varieties jacked sugar levels up to 17 percent. More Sugar meant more time for sweetness to hold following harvest. SE kernels are very tender.

Soon after, another gene, SH2 or “shrunken-2,” was found, which pushed that sweetness even higher, up to 35 percent! Read more

asparagus seedlings

A CASE FOR ASPARAGUS

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The Evidence

I’d like to make a case for growing asparagus, even if you’re not a vegetable gardener. In fact, vegetable gardeners need not relegate asparagus to the vegetable patch. The plants hold little interest to deer, rabbits and other furry invaders that must be fenced out of vegetable gardens.

The ferny stems can provide a wispy lime-green backdrop to mounded flowers like lavatera and gaillardia, or an airy foreground to the broad, glossy leaves of holly bushes. My present asparagus provides a backdrop for three clematis plants trained skyward on wire trellises.Asparagus and clematis

Asparagus is especially easy to grow, in part because it is a perennial. My patch is about 25 years old. Read more

Slitting bark of rootstock

HENRY THE EIGHTH OF HORTICULTURE

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How to “Make” a New Tree

Visitors to my garden this time of year are often astonished to see me lopping the tops off some of my trees. No, I’m not the Henry the Eighth of horticulture, chopping the head off any tree that no longer meets my fancy. Okay, I AM actually lopping the head off any tree that doesn’t meet my fancy.

I part ways with Ol’ Henry, though, because, first, lopping the head off a tree doesn’t kill it and, second, I graft on a new head. (Something Henry could not do.) A few years after this seemingly brutal operation, the tree looks as chipper as ever. And it has a head that I like better — or else off it comes again.Inserting scions for bark graft

I do this type of grafting, called topworking, mostly on my pear trees, but it could equally be applied to many other kinds of fruit or ornamental trees. Read more

Cats with potted begonias

IS REAL SOIL GOING TO POT?

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What’s in Your Mix?

That potting soil that you’ve bought for your seedlings and houseplants? It probably has no REAL soil at all in it. Real soil is just too hard to obtain in reliable and uniform quantities for commercial packaging. Soilless mixes, as commercial potting soils are (or should be) called, are a mix of some kind(s) of organic materials along with some aggregate, with possible additions of fertilizer, ground limestone, and a wetting agent.Cats with potted begonias

Organic materials in these mixes help sponge up water and cling to nutrients that might otherwise wash down and out of the pot. Peat moss is the organic material traditionally used in soilless mixes. Although it holds water well, it’s initially hard to wet, which is why wetting agents are sometimes added to soilless mixes. Read more

Raised beds

SOIL PREP

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Universal Plant Needs

Although garden plants hail from all corners of the world, they have surprisingly similar soil requirements — best attended to before planting. Simply put, most garden plants need soils that are well-supplied with air (yes, roots must breathe!), water, and nutrients. And one other important ingredient, organic matter (sometimes called humus), that witch’s brew of living and once-living organic materials in various states of decomposition that, in addition to contributing to the just-mentioned needs, also includes a friendly microbial community for optimum plant health.

Aeration must be the first consideration, since plants are unable to utilize nutrients, even in fertile soils, if roots lack access to air. There are two causes for waterlogged soils: either the water table is too high, bringing water up from below; or the soil has pores so small that they cling by capillary action to too much water that falls from above.

Deal with a high water table by either choosing another site for planting, by raising roots above the water table, or by lowering the water table. Growing plants in raised beds is the way to bring roots above a water table. Raised bedsBuild beds high enough to take the roots up out of the water, and wide enough so they don’t dry out too quickly. Read more